00149913

Component

https://onlinepubs.trb.or...epubs/sr/sr166/166-006.pdf

An examination of existing binder systems showed that little possibility existed for the development of a completely new binder system, and the most probable new binder for substantial use appeared to be sulfur. The necessity is noted for consideration of cost and energy effectiveness of trade-offs among possible alternaties, and for the establishment of universitally acceptable energy use factors. The workshop made the following recommendations; optimize design; eliminate artifical restraints; use emulsions instead of cutbacks for tack coats; evaluate practices for crack sealing; design asphalt mixtures to use less asphalt per volume unit of construction; design portland cement concrete (PCC) to meet the needs; Use fly ash or other available pozzolans in PCC. Innovative techniques were also suggested which included the use of recycling (asphalt in old pavement) procedures, and the use of special water reducing agents in PCC. Combinations of stabilizing materials is recommended for improved performance. The need is indicated for research in the use of emulsions, sulfur and sulfur-asphalt systems, reinforcing additives for asphalt, prime coats, and the performance of PCC pavements. Careful systems analysis is essential in the evaluation of cost of energy-use effectivess to identify areas of promising payoff.

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00149927

pp 34-38

1976

Transportation Research Board Special Report

Conference on Optimizing the Use of Materials and Energy in Transportation Construction

Digital/other

Asphalt mixtures; Binders; Cost effectiveness; Emulsions; Energy; Mix design; Pavements; Portland cement concrete; Recycling; Stabilizers; Sulfur; Water reducing agents

Energy; Geotechnology; Highways; Materials; Pavements

TRIS, TRB, ATRI

Apr 13 1977 12:00AM

• AN INTRODUCTION TO OPTIMIZING THE USE OF MATERIALS AND ENERGY IN TRANSPORTATION CONSTRUCTION
• CONTRACTOR'S VIEW OF OPTIMIZING MATERIALS AND ENERGY
• ROADWAY DECISION MAKING AND IMPLICATIONS FOR ENERGY USE: SOME ECONOMIC CONSIDERATIONS
• THE ENERGY CRISIS: FACT OR FICTION
• WILL THERE BE A MATERIALS CRISIS?
• WORKSHOP TOPIC 2. QUALITY STANDARDS
• WORKSHOP TOPIC 3. AGGREGATES AND OTHER MATERIALS
• WORKSHOP TOPIC 4. EARTHWORK OR EXISTING ROADWAY PREPARATION
• WORKSHOP TOPIC 5. WASTE MATERIALS, BY-PRODUCTS, AND RECYCLED PRODUCTS
• WORKSHOP TOPIC 6. PRODUCTION AND CONSTRUCTION TECHNIQUES
• WORKSHOP TOPIC 7. NEW PRODUCTS AND PROCEDURES POST-1985